Which of the following protections is/are available as a fundamental right under the constitution to a person detained under a preventive detention law? 1. The grounds of detention should be communicated to the detenu even if it is against the public interest 2. The detenu must be released after 24 hours unless the magistrate authorises further detention. 3. The detenu must be offered an opportunity to make a representation against the detention order. Select the correct answer using the code given below.